File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Satellites reveal hotspots of global river extent change

TitleSatellites reveal hotspots of global river extent change
Authors
Issue Date22-Mar-2023
PublisherNature Research
Citation
Nature Communications, 2023, v. 14, n. 1 How to Cite?
Abstract

Rivers are among the most diverse, dynamic, and productive ecosystems on Earth. River flow regimes are constantly changing, but characterizing and understanding such changes have been challenging from a long-term and global perspective. By analyzing water extent variations observed from four-decade Landsat imagery, we here provide a global attribution of the recent changes in river regime to morphological dynamics (e.g., channel shifting and anabranching), expansion induced by new dams, and hydrological signals of widening and narrowing. Morphological dynamics prevailed in ~20% of the global river area. Booming reservoir constructions, mostly skewed in Asia and South America, contributed to ~32% of the river widening. The remaining hydrological signals were characterized by contrasting hotspots, including prominent river widening in alpine and pan-Arctic regions and narrowing in the arid/semi-arid continental interiors, driven by varying trends in climate forcing, cryospheric response to warming, and human water management. Our findings suggest that the recent river extent dynamics diverge based on hydroclimate and socio-economic conditions, and besides reflecting ongoing morphodynamical processes, river extent changes show close connections with external forcings, including climate change and anthropogenic interference.


Persistent Identifierhttp://hdl.handle.net/10722/331065
ISSN
2023 Impact Factor: 14.7
2023 SCImago Journal Rankings: 4.887
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWu, QH-
dc.contributor.authorKe, LH-
dc.contributor.authorWang, JD-
dc.contributor.authorPavelsky, TM-
dc.contributor.authorAllen, GH-
dc.contributor.authorSheng, YW-
dc.contributor.authorDuan, XJ-
dc.contributor.authorZhu, YQ-
dc.contributor.authorWu, J-
dc.contributor.authorWang, L-
dc.contributor.authorLiu, K-
dc.contributor.authorChen, T-
dc.contributor.authorZhang, WS-
dc.contributor.authorFan, CY-
dc.contributor.authorYong, B-
dc.contributor.authorSong, CQ-
dc.date.accessioned2023-09-21T06:52:28Z-
dc.date.available2023-09-21T06:52:28Z-
dc.date.issued2023-03-22-
dc.identifier.citationNature Communications, 2023, v. 14, n. 1-
dc.identifier.issn2041-1723-
dc.identifier.urihttp://hdl.handle.net/10722/331065-
dc.description.abstract<p>Rivers are among the most diverse, dynamic, and productive ecosystems on Earth. River flow regimes are constantly changing, but characterizing and understanding such changes have been challenging from a long-term and global perspective. By analyzing water extent variations observed from four-decade Landsat imagery, we here provide a global attribution of the recent changes in river regime to morphological dynamics (e.g., channel shifting and anabranching), expansion induced by new dams, and hydrological signals of widening and narrowing. Morphological dynamics prevailed in ~20% of the global river area. Booming reservoir constructions, mostly skewed in Asia and South America, contributed to ~32% of the river widening. The remaining hydrological signals were characterized by contrasting hotspots, including prominent river widening in alpine and pan-Arctic regions and narrowing in the arid/semi-arid continental interiors, driven by varying trends in climate forcing, cryospheric response to warming, and human water management. Our findings suggest that the recent river extent dynamics diverge based on hydroclimate and socio-economic conditions, and besides reflecting ongoing morphodynamical processes, river extent changes show close connections with external forcings, including climate change and anthropogenic interference.</p>-
dc.languageeng-
dc.publisherNature Research-
dc.relation.ispartofNature Communications-
dc.titleSatellites reveal hotspots of global river extent change-
dc.typeArticle-
dc.identifier.doi10.1038/s41467-023-37061-3-
dc.identifier.scopuseid_2-s2.0-85150795764-
dc.identifier.volume14-
dc.identifier.issue1-
dc.identifier.eissn2041-1723-
dc.identifier.isiWOS:001001470100001-
dc.identifier.issnl2041-1723-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats